Roller-journal bearing



2 Sheets-Sheet 1.

(No Model.)

0. RJGHAPLIN.

R0LLRR JOURNAL BEARING.

No. 400,053. Patented Mar. 26, 1889.

(MINI/1";

III]! r g Mw N. PETERS, Phnwuthognphor. wuhin hn. n c.

(No Modem I 2 SheetsSheet 2, 0. R. GHAPLIN.

ROLLER JOURNAL BEARING. No. 400,053. Patented Mar. 26, 1889.

Inventor: Orril RL'haplin,

Jlllorney.

N, PETERS PholoLilhugnpher. Waahinglon, n. c,

UNITED STATES PATENT OFFICE.

ORRIL R. lIAPIlIN, OF BOSTON, MASSACHUSETTS.

ROLLER-JOURNAL BEARING.

SPECIFICATION forming part of Letters Patent No. 400,053, dated March26, 1889.

Application filed November 17, 1888. Serial No. 291,081. (No model.)

T 0 all whom it may concern.-

Be it known that I, ORRIL R. CHAPLIN, of Boston, in the county ofSuffolk and State of Massachusetts, have invented certain new and usefulImprovements in Roller-Journal .liearin gs, of which the following,taken in connection with the accompanying drawings, is a specification.

My invention relates to roller journal-bean ings for shafts and axles;and it consists in certain novel features of construction, arrangement,and combination of parts, which will be readily understood by referenceto the description of the drawings, and to the claims to be hereinaftergiven, and in which my invention is clearly pointed out.

Figure 1 of the drawings is a plan of an axle-bearing for street-carsembodying my invention. Fig. 2 is a vertical section on line a .r onFigs. 1 and Fig. 3 is a horizontal section on line y y on Fig. 2. Fig. 4is an elevation of the inner end of the bushing or lining within whichthe bearing-rollers revolve. Fig. 5 is a longitudinal section of thesame 011 line .22 and showing a small portion of the main casting insection and the means employed to prevent said bushing revolving withinits casing in elevation. Fig. (3 is a transverse section of theroller-carrying frame with the rollers removed, the cutting plane beingon line 20 w on Fig. 7. Fig. 7 is a longitudinal section on line t r onFig. (5. Fig. Sis an elevation of the end of the aXlewith the annularly-grooved thrust-collar seen red thereon. Fig. 9 is a section online? ton Fig. 8, and Fig. 10 is an elevation of the forkedballseparator.

In the drawings, A is the main casing or shell of the bearing, havingconnected therewith by the ribs A the spring supportingseats A".

B is the axle provided with the shoulder a, and having secured to itsend by the screws 7) b the annularly-grooved collars 0, provided in itsouter face with an annular rabbet to receive the hardened-steeldisk c,as shown in Fig. 3.

The casing A is provided at one end with the inwardly-projecting flange(7, and near the same end with the annular shoulder 67, against whichone end of the bushing e e abuts, as shown. The bushing-e e is dividedobliquely into two parts, as shown in Figs. 4 and 5, so that the upperportion, 6, which is subj ected to the greatest wear, may be readily andeasily removed and replaced byanew section whenever it becomesnecessary. The lower section, 6', has formed in its inner end the slotwith which the pin (a set in the casing A and projecting inwardtherefrom, engages to prevent the bushing e c revolving in said casing,all as shown in Figs. 4 and 5. The axle B has fitted thereon in contactwith the shoulder a the collar f, and between it and the collar 0 thesleeve g is so fitted to the axle as to. revolve therewith, and uponthis sleeve is mounted, so as to revolve thereon, a roller-carryingframe composed of the two heads or collars 7?. 7L and the tie-rods 7L h,secured in said heads, so as to maintain them at the proper distanceapart. The openings through the heads or collars h h are bushed withrings 7L2 of suitable material, preferably of a fibrous naturesuch asleatheroid or chemically-treated paperwhich serves to reduce thefriction of the surfaces, and thus render them more durable.

C C are a series of bearing-rollers, each having a diameter equal to thedistance between the exterior of the sleeve gand the interior of thebushing c e and a length nearly equal to the distance between the innerfaces of the heads or collars 72. 71, said rollers being arranged aroundthe sleeve g at equal distances from each other, as shown in Fig. 2.

Between each two of the bearing-rollers C C'is a smaller roll, 1',having its ends made frusto-conical and fitted to curved slots 1',formed in the heads or collars 71 71, the sides of which slots areinclined to fit the taper of the frusto-conical bearing ends of therolls '2', the length of the slots t" in the direction of thecircumference of the head or collar being suliicient to permit a freemovement to a limited extent of the rolls 1' 11 about the sleeve g. Therolls 2 i are of such a diameter as to fill the spaces between therollers C C and maintain them at a uniform distance apart, and theirmovement about the sleeve g is so limited by the ends of the slots 1' ias to prevent the rollers O 0 coming in contact with the tierods h 72..(See Fig. 6.) i

A ring, j, is titted in the outer end of the 1 casing A and abutsagainst the outer end of l) is a cap chambered to inclose the collarwhich projects beyond the ez'ising' A, and having formed therein asmaller chamber, in

the bottom of which is titted the disk In, in v the frusto-ctmiealbearing ends of said smaller the inner [ace of which formed acurvedannular groove, in which roll the two balls n, which balls are kept at auniform distance apart by the li'ork-ei'idcd carrier 0, pivoted to thecenter of the disk at, and bear against the disk 0 to take the endwisethrust of the axle or shaft in the opposite direction. A disk of leatheror other suitable material, p, is secured to the inner end of the casingA by the annular cap or ring R and serves as a dust'guard.

The sleeve g may be dispensed with, if desired, and the rollers C maybear direetly upon the axle; but l prefer to use the sleeve, becausewhen it; becomes badly worn it; may be removed and replaced by a newone. and the axle remains as good as new.

it has been found necessary in practice to have the outer casing or boxof roller-bearings hushed, so that when the parts become badly worn saidbushing maybe removed and a new one inserted in its place, therebyavoiding the necessity of thrmvine' away the main easingorbox; butheretofore said linishing' has been made in one j )lOC(;, which I havefound to be quite objectionable for the reason that the constant rollingof the bearing-rolls within said bushing tends to expand it and. pack itso tightly into the outer casing as to render it difficult to remove it,and when removed the whole lnushing' had to be thrown into the scrapheap and an entire new bushing putin its place.

lly nniking the lulshing e a in two parts divided obliquely, as shownand described, the upper portion, e, which is the only part subjected toany considerable wear, may be readily removed and a new section put inits place without disturbing the lower section, e.

The collars and 7;, the disks 0 and m, and the balls 7 and o arepreferablymade of steel and hz'rrdened.

What I claim as new, and desire to secure by Letters Patent of theUnited States. is

1. In a roller-liiearing, the combination of an outer casing and acyliinlricalbushing'dil vided longitudinally into two parts, the planeof division being oblique to its axis. i

3. In a roller-bearing, the combination of an inclosing casing or box,:1 roller-carrying frame composed of two annn ar heads or collarsconnected together by a series of tie-rods, a series of bearing-rollslying loosely between said heads or collars, a corresponding number ofsmaller rolls having frustoconieal l'iearing ends and arranged onebetween each two of said bearing-rolls, each of said heads beingprovidedwith a corresponding number ot. curved slots having inclined sides toreceive rolls.

3. In a roller-journal ljiearing, the combination, withv the axle orjournal, of the collars o and j, secured thereon the roller-earrying'frame 71 71 71 fitted to said journal. between said collars andrevoluble thereon, the bearing-rollers (l ,rest1ing loosely between theheads of said revoluble fran'ie witlnnit bear ings therein, the smallerrolls, '1', alternating with said l'iearing rolls and having; hearingsin said heads, and an outer casing or box inclosing the whole andhavinga cylindrical inner surface upon which the bearing-rollers travelas the journal or axle is revolved.

l. In combination with the axle or journal and the outer casing or box,the annular eollar 7r, secured in. a fixed position in the outer end ofsaid casing, the collar 0, secured to the end of said axle or journaland having formed in its inner face an annular groove or pocket, a ballfitted in said groove or pocket and arranged to bear ag'z'tinst thecollar /r, and to take the thrust of the shaft or axle in one direction, the cap I), inelosing said collar 0, the an]inlarly-grooveddisk on, fitted to a recess in said cap, the steel disk 0, set in theouter face of the collar 0, and a ball or balls interposed between thedisk 0 and theannularlygrooved disk n1, so as to take the thrust of theshaft or axle in the opposite direction.

The combination of the casing or box, the axle or journal, the collars cand 1., the cap D, the disk in, the balls and n, and the ball-carrier 0,all constructed, arranged, and operating substantially as and for thepurposes described.

in testinn'my whereof I' have signed my name to this spcci tication, inthe presence of two subscribing witnesses, on this lst day of Novem her,A. l).

N. lion uixnn, \VA'I'JIEi': E. llonmno.

